Home / 21,967.56-30,315.24-12,031.56

Finding the Fourth Proportional to 21,967.56, 30,315.24 and 12,031.56

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Solution

The fourth proportional to 21,967.56, 30,315.24 and 12,031.56 is: 16,603.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,967.56 : 30,315.24 = 12,031.56 : x
  2. Step 2: Convert to fraction form
    21,967.56/30,315.24 = 12,031.56/x
  3. Step 3: Cross multiply
    21,967.56x = 30,315.24 × 12,031.56
  4. Step 4: Simplify right side
    21,967.56x = 364,739,628.97
  5. Step 5: Solve for x
    x = 364,739,628.97/21,967.56
  6. Step 6: Final answer
    x = 16,603.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.